Average humidity in South Portland (ME)
The mean monthly relative humidity over the year in South Portland (Maine), the United States of America.
Data from: Portland, the United States of America (2 KM, 1 Miles).
- On average, September is the most humid month, at 77.0%.
- On average, February is the least humid month, at 65.0%.
- The average annual percentage of humidity is 71%.
Forecast for South Portland (ME)
Fri Nov 22
11°C | 6°C
E 
18 km/h
18 km/h12 mm
partly cloudy and rain
Sat Nov 23
7°C | 4°C
N 32 km/h
32 km/h21 mm
overcast and heavy rain
Sun Nov 24
9°C | 2°C
W 32 km/h
32 km/h2 mm
broken clouds and chance of rain
